Department of Homeland Security chief Janet Napolitano has directed ICE to prepare for a mass influx of immigrants into the United States, calling for the plan to deal with the “shelter” and “processing” of large numbers of people.

“The Department of Homeland Security wants a plan to deal with sudden mass migrations of immigrants to the U.S.,” reports Government Security News.

“DHS Secretary Janet Napolitano, according to a statement by Immigration and Customs Enforcement, recently directed ICE to develop a national-level mass migration plan. The plan will outline how to address the health care, sheltering, processing, transition and disposition of large numbers of undocumented individuals who might arrive in the U.S. as the result of a mass migration, said ICE on Dec. 13.”

Part of the preparations for sheltering and processing an influx of people includes the construction and manning of detention camps.